{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "Serotonin and N - acetyl serotonin which augmented ketamine DOC , did not do so in the absence of the pineal gland , whereas melatonin potentiated the ketamine DOC in both the intact and pinealectomized chick ."}
{"Chemical": ["Serotonin", "N - acetyl serotonin", "ketamine", "melatonin"], "Disease": []}